The aim of present study was to investigate the effects of Ovsynch synchronisation programme combined with vitamins and minerals upon biochemical, hormonal and reproductive parameters for improving post partum (pp) reproductive performance of underfed dairy cows. Thirty-six healthy cows, aged 3-10 years-old, were used with a minimum 43 days pp. Following the first blood sampling (as baseline), ...

AIM The study was conducted to determine the serum levels of certain hormones in post-partum anestrus cows following treatment with controlled internal drug release (CIDR) and Ovsynch protocol. MATERIALS AND METHODS A total of 30 postpartum anestrus cows were divided into three equal groups after thorough gynecoclinical examination. The Group 1 animals received an intravaginal progesterone de...

Este estudo teve como objetivo avaliar o comportamento sexual e a fertilidade de ovelhas borregas após aplicação um protocolo indução/sincronização estro utilizando GnRH. As fêmeas foram distribuídas aleatoriamente em dois grupos experimentais: grupo 1 (G1) foi constituído pluríparas com 2 3 anos idade, (G2) composto por borregas, 7 8 meses idade. Todas as submetidas ao Ovsynch, que consistiu n...

For assessing the impact of melatonin pre-treatment in summer anestrous Murrah buffaloes on subsequent reproductive activity a fixed time artificial insemination (FTAI) protocol, 83 were subcutaneously inserted 2x4 mm size absorbable (MT) implants (18 mg/50 kg b wt) at base left ear and 38 used as non-implanted controls. On day 35 post-MT, treatment control group subjected to FTAI protocol (Ovs...

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Ovsynch senkronizasyon protokolü östrojen tespiti olmadan zamanlanmış suni tohumlama sağlayan pratik bir yöntemdir. Östrus ve yumurtlamayı senkronize etmek için süt ineklerinde yaygın olarak uygulanır. Bu çalışmada Holştein ırkı ineklerde ile β-karoten enjeksiyonun döl verimi üzerine etkisi araştırıldı. 
 Araştırmada 75 baş, postpartum 40-150. günleri arasında yaş ortalaması 45 ay olan hol...

Administration of recombinant bovine somatotropin (bST) to lactating dairy cows during heat stress increases milk yield, but it also can increase body temperature and may therefore compromise fertility. However, it is possible that bST treatment could increase fertility during heat stress because it has been reported to increase fertility in lactating cows. In addition, bST increases secretion ...

This current study aimed to determine ovarian and luteal blood flow waveform patterns in buffalos synchronized using OvSynch protocol cold hot seasons. Six cyclic buffalo cows aged 6±0.5 years old, having a weight of 400 ± 50 kg, were scanned daily along three successive estrous cycles transrectally by Doppler ultrasonography evaluate the normal hemodynamic during spontaneous ovulation before s...